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(No Model.)

J. W. HYATT 8a 0. S. LOGKWOOD. METHOD OF SEEIURING GLASS TO A BACKING. No. 286,541. Y Patented Oct. 9, 1883.

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7 Nrr-nn STATES PATENT Fries.

JOHN w. nrn'rr, or NEWARK, NEW JERSEY, AND CHARLES s. LOOKWOOD, or ALBANY, new YORK, ASSIGNORS TO THE nonsrnn'rn COMPANY, (LIM- ITED,) OF ALBANY, NEWV YORK.

METHOD OF SECURING GLASS TO A BACKING.

srncrrrcnizon forming part of Letters Patent No. 286,541, dated October 9, 1883. Application filed September 3, 1883. (No model.)

To aZZ whom, it nmy concern:

Be it known that we, JOHN NV. HYATT, a citizen of the United States, residing in Newark, Essex county, New Jersey, and Orrirnmas S. LOCKWOOD, a citizen of the United States, residing in Albany, Albany county, New York, have invented certain new and useful Methods of Securing Glass or other Fragile Material in or to a Backing, of which the fol- IQ lowing is a specification.

The invention relates to an improved method of securing glass or other fragile material in or to a backing. W'c contemplate its employmen t particularly in connection with the manufacture of hand-glasses, in which a piece of mirror is secured to a back of plastic material.

The distinctive novelty of the invention consists in introducing a piece of metal of appropriate thickness into the die, in which the article is afterward formed by the application of heat and pressure, the piece of metal being arranged to encircle the mirror, and being of suiiicient width to admit of its upper edge being spun or bcnt'over on the edge of the glass for'the purpose of retaining it in its seat in the backing. The metal, which is preferably in the form of a strip, is inserted into the mold or'die, one, of its edges being held and protected by the meeting parts or sections 0 thereof, its other edge extending into the matrix, and being deflected slightly toward the outer edges thereof, after which the material of which the backing is to be composed is introduced and the die closed. and heat and ,5 pressure applied, whereby thebacking is given form and the unprotected deflected edge of the strip of metal is securely retained therein. Upon the removal of the backing from the die or mold, the space provided for the 40 mirror will be found to be encircled by the strip of metal, and when the mirror is placed in its seat the edge of the said strip of metal will. be spun over on the edges thereof, securing it in position.

The invention sought to be protected here- 5 by may be more clearly understood by reference tothe detailed description hereinafter presented, and to the accompanying drawings, in which- Figure 1 is a plan view of the die or mold, the outline of the matrix being indicated by' dotted lines. Fig. 2 is a vertical transverse section on the line X X of Fig. 1; and Fig. 3 is a similar view of the backing with the metal strip and mirror in position, the metal 5 5 at one side of the article being shown spun over on the edge of the mirror, and at the other side in an upright position.

In the said drawings, A B '0 denote the parts 4 composing the die, the part B, which, when oo in use, forms the seat for the mirror, being arranged within the line described by the shoulder (1, formed in the part A, and being sufficiently removed therefrom to permit the strip of metal I) to be retained between it and the said shoulder, as shown in Fig. 2. When the strip of metal I) is in the position specified, one of its edges, it will be observed, is en-. tirely covered, and is retained by the meeting parts of the die. After the sections or parts A B and the strip b are arranged as specified, the material, preferably in powdered form, is introduced and the section 0 then inserted, and the whole subjected to heat and pressure, whereby the material is welded into a solid back carrying the strip of metal. After removing the back from the die or mold, the mirror is inserted into the space provided for it, and the edge of the metal then spun over upon it, as aforesaid. So

What we claim as our invention, and desire to secure by Letters Patent, is

1. The process hereinbefore described of manufacturing hand-mirrors, which consists in first forming the backing in a die or mold in 8 5 which a strip of metal to inclose the mirrorscat'has been previously inserted, then introducing the piece of glass, and finally turning or spinning the exposed edge of the metal over upon the edge of the glass, substantially as set forth.

2. The process hereinbefore described of securing a piece of glass or other fragile material in a backing, which consists in securing a strip of metal around the seat for the fragile material. then placing said material in place, and finally turning the edges of the metal over thereon, substantially as set forth.

Signed at New York, in the county of New York and State of New York, this 28th day of July, A. D, 1883. I

. JOHN \V. HYATT. Witnesses:

CHAS. O. GILL, HERMAN GUsToW. Signed at Albany, New York, this 1st day of August, A. D. 1883.

CHAS. S. LOCKWOOD. \Vitnesses: 1

DAVID M. KINNEAR, JOHN R. Forum. 

